1. Which blood type is composed of both recessive alleles? 2. How would you describe the phenotype of a homozygous dominant A? Heterozygous A? 3. How would you differentiate homozygous blood type from a heterozygous blood type? 4. Why do blood type AB is called codominant with each other?​

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Answers 1

Answer:

1.AB blood
  • An example of codominance for a gene with multiple alleles is seen in the human ABO blood group system. Persons with type AB blood have one allele for A and one for B; the O allele is recessive (its expression is masked by the other alleles).
2.A homozygous dominant allele combination contains two dominant alleles and expresses the dominant phenotype (expressed physical trait). A homozygous recessive allele combination contains two recessive alleles and expresses the recessive phenotype. ... The phenotypic ratio in this cross is 3:1.

3. Homozygous is a genetic condition where an individual inherits the same alleles of a gene from both the parents. Heterozygous is a genetic condition where an individual inherits different alleles of a gene from the two parents.

4.AB blood type is codominant
  • because the red blood cells have the products of both the A and the B alleles of the ABO gene.

Explanation:

PA BRAINLIEST PO

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